Wild guess here, but it seems to me that if your original request for the change was for Nine times Nymph, yet the Mod/Admin mistakenly changed it to Nines instead, I would think you should be able to negotiate a correction. But WomanofScorn is right … it is even more mysterious.
The way it rolls off the tongue and no s on the Nine, a mistake has been made by the powers-that-be (don’t smite me with fireballs, please!).
It’s odd, the main reason, just like me…
Woohooo!!! congrats! I came into MPSIMS just to see if you had a thread here! (of course, that’s cuz I wanted to see why I had addressed you as Sanguine and you showed up as Nines but hey… :))
Now I wish I could go back to Sanguine… BOO HOO! sniff!
Ah, don’t worry too much about it, you can probably get it fixed.
gives you a cake for no reason
Well, okay, the reason is because I’m lame and I give out e-cake. 
E-cake is not fattening so thanks! SNARF
Coincidentally (or not?) on the 28th anniversary of the sinking of the Edmund Fitzgerald, which Gordon Lightfoot commemorated in a song that noted that “[t]he church bell chimed till it rang twenty-nine times”, once for each mariner who lost his life on that stormy Lake Superior night.
Since I lived most of my life near Cleveland, the port to which the “Fitz” was headed on what became its final journey, the disaster and the song have been on my mind today. Your new screen name thus resonates with me in a uniquely poignant manner. However you choose to style yourself, you’ll continue to be one of my favorite SDMB posters. Welcome anew!
I’m included in someone’s faves? WHOA! That’s cool and I feel all warm-n-tingly in my lil’ heart cockels. Thanks, man! 
So now your sig can be:
I have been smited! It’s the curse of the “s”!
or if they remove it:
That’s one less “s” to worry about.
blah i know but…
Hey, better than the drivel swirling all mucky in me head! YOur efforts astound me, your generosity humbles me… thank you.
Does this mean I’ll have to come up with entirely new impressions of you? 
Not to worry, I’ll have it announced for you in the Official Record of Name Changes Thread… with the contentious “s” in parentheses, of course. Hopefully, you can get it changed.
At any rate… you’re a good person in my books, Nine Times Nymph.
F_X
Thanks, you naughty hamster with whip! Down with the “s”!!! RAWR!
But Sanguine Spider was so unique and original!
Ah, well. Another good name bites the dust. It is, after all, YOUR name. 
Sorry, F_X, I beat you to it with the new impressions.
9TN, you’re in good company with the high post count. And I hope you get the “s” fixed soon!
Oh and you may have noticed I also changed my username recently.
NTN: I can be naughty, but I have no whip. Oh well, maybe I’ll buy one eventually.
cityboy916: If you beat me to them, there ain’t nothing I can do about it. I’ve been on the phone to certain people from 8 till 10:45. Now, I’ll go into that thread… and do my own thing.
(notice that one particular letter ain’t in my writing here )
F_X
Ahh, yeah, you are a clever one, Lady X! Right on!
Why oh, WHY did I mess with a good thing? I’m going to see if the powers-that-be will let me go back to my original name. Is this a lost cause?
Ask and ye shall receive! I love you, powers-that-be!!! SMOOCH
Hey, I know you!
And I could have had Nine Times Nymph??? Darn…